<table border="1" mj_done="true">
    <thead>
    <tr>
        <th>序号</th>
        <th>编号</th>
        <th>题目</th>
        <th>通过率</th>
        <th>难度</th>
        <th>出题指数</th>
        <th>出现频率</th>
    </tr>
    </thead>
    <tbody>
    <tr>
        <td>1</td>
        <td>5</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-palindromic-substring/">最长回文子串</a></td>
        <td>28.4%</td>
        <td>中等</td>
        <td>5</td>
        <td>0.541</td>
    </tr>
    <tr>
        <td>2</td>
        <td>1</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/two-sum/">两数之和</a></td>
        <td>47.5%</td>
        <td>简单</td>
        <td>5</td>
        <td>0.179</td>
    </tr>
    <tr>
        <td>3</td>
        <td>3</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-substring-without-repeating-characters/">无重复字符的最长子串</a>
        </td>
        <td>32.8%</td>
        <td>中等</td>
        <td>5</td>
        <td>0.348</td>
    </tr>
    <tr>
        <td>4</td>
        <td>7</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-integer/">整数反转</a></td>
        <td>33.6%</td>
        <td>简单</td>
        <td>4</td>
        <td>0.223</td>
    </tr>
    <tr>
        <td>5</td>
        <td>20</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-parentheses/">有效的括号</a></td>
        <td>40.8%</td>
        <td>简单</td>
        <td>4</td>
        <td>0.241</td>
    </tr>
    <tr>
        <td>6</td>
        <td>2</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/add-two-numbers/">两数相加</a></td>
        <td>36.6%</td>
        <td>中等</td>
        <td>4</td>
        <td>0.175</td>
    </tr>
    <tr>
        <td>7</td>
        <td>43</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/multiply-strings/">字符串相乘</a></td>
        <td>41.5%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.573</td>
    </tr>
    <tr>
        <td>8</td>
        <td>53</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-subarray/">最大子序和</a></td>
        <td>49.0%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.204</td>
    </tr>
    <tr>
        <td>9</td>
        <td>394</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/decode-string/">字符串解码</a></td>
        <td>48.4%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.784</td>
    </tr>
    <tr>
        <td>10</td>
        <td>9</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/palindrome-number/">回文数</a></td>
        <td>57.1%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.165</td>
    </tr>
    <tr>
        <td>11</td>
        <td>32</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-valid-parentheses/">最长有效括号</a></td>
        <td>29.5%</td>
        <td>困难</td>
        <td>3</td>
        <td>0.477</td>
    </tr>
    <tr>
        <td>12</td>
        <td>206</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-linked-list/">反转链表</a></td>
        <td>66.9%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.193</td>
    </tr>
    <tr>
        <td>13</td>
        <td>200</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/number-of-islands/">岛屿数量</a></td>
        <td>46.9%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.37</td>
    </tr>
    <tr>
        <td>14</td>
        <td>344</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-string/">反转字符串</a></td>
        <td>68.9%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.265</td>
    </tr>
    <tr>
        <td>15</td>
        <td>85</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximal-rectangle/">最大矩形</a></td>
        <td>44.3%</td>
        <td>困难</td>
        <td>3</td>
        <td>0.697</td>
    </tr>
    <tr>
        <td>16</td>
        <td>221</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximal-square/">最大正方形</a></td>
        <td>38.8%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.586</td>
    </tr>
    <tr>
        <td>17</td>
        <td>45</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/jump-game-ii/">跳跃游戏 II</a></td>
        <td>33.0%</td>
        <td>困难</td>
        <td>3</td>
        <td>0.501</td>
    </tr>
    <tr>
        <td>18</td>
        <td>72</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/edit-distance/">编辑距离</a></td>
        <td>56.1%</td>
        <td>困难</td>
        <td>3</td>
        <td>0.442</td>
    </tr>
    <tr>
        <td>19</td>
        <td>70</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/climbing-stairs/">爬楼梯</a></td>
        <td>47.8%</td>
        <td>简单</td>
        <td>3</td>
        <td>0.14</td>
    </tr>
    <tr>
        <td>20</td>
        <td>55</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/jump-game/">跳跃游戏</a></td>
        <td>38.0%</td>
        <td>中等</td>
        <td>3</td>
        <td>0.251</td>
    </tr>
    <tr>
        <td>21</td>
        <td>21</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/merge-two-sorted-lists/">合并两个有序链表</a></td>
        <td>59.5%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.095</td>
    </tr>
    <tr>
        <td>22</td>
        <td>93</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/restore-ip-addresses/">复原IP地址</a></td>
        <td>45.6%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.505</td>
    </tr>
    <tr>
        <td>23</td>
        <td>11</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/container-with-most-water/">盛最多水的容器</a></td>
        <td>61.1%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.118</td>
    </tr>
    <tr>
        <td>24</td>
        <td>8</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/string-to-integer-atoi/">字符串转换整数 (atoi)</a></td>
        <td>19.0%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.134</td>
    </tr>
    <tr>
        <td>25</td>
        <td>42</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/trapping-rain-water/">接雨水</a></td>
        <td>48.4%</td>
        <td>困难</td>
        <td>2</td>
        <td>0.225</td>
    </tr>
    <tr>
        <td>26</td>
        <td>739</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/daily-temperatures/">每日温度</a></td>
        <td>58.0%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.373</td>
    </tr>
    <tr>
        <td>27</td>
        <td>26</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/remove-duplicates-from-sorted-array/">删除排序数组中的重复项</a></td>
        <td>48.4%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.071</td>
    </tr>
    <tr>
        <td>28</td>
        <td>820</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/short-encoding-of-words/">单词的压缩编码</a></td>
        <td>39.3%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.92</td>
    </tr>
    <tr>
        <td>29</td>
        <td>37</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sudoku-solver/">解数独</a></td>
        <td>59.3%</td>
        <td>困难</td>
        <td>2</td>
        <td>0.448</td>
    </tr>
    <tr>
        <td>30</td>
        <td>101</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/symmetric-tree/">对称二叉树</a></td>
        <td>49.9%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.105</td>
    </tr>
    <tr>
        <td>31</td>
        <td>46</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/permutations/">全排列</a></td>
        <td>73.9%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.138</td>
    </tr>
    <tr>
        <td>32</td>
        <td>48</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/rotate-image/">旋转图像</a></td>
        <td>66.7%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.181</td>
    </tr>
    <tr>
        <td>33</td>
        <td>322</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/coin-change/">零钱兑换</a></td>
        <td>37.4%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.226</td>
    </tr>
    <tr>
        <td>34</td>
        <td>679</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/24-game/">24 点游戏</a></td>
        <td>40.8%</td>
        <td>困难</td>
        <td>2</td>
        <td>1.445</td>
    </tr>
    <tr>
        <td>35</td>
        <td>23</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/merge-k-sorted-lists/">合并K个排序链表</a></td>
        <td>48.7%</td>
        <td>困难</td>
        <td>2</td>
        <td>0.158</td>
    </tr>
    <tr>
        <td>36</td>
        <td>12</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/integer-to-roman/">整数转罗马数字</a></td>
        <td>62.5%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.133</td>
    </tr>
    <tr>
        <td>37</td>
        <td>14</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-common-prefix/">最长公共前缀</a></td>
        <td>36.1%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.061</td>
    </tr>
    <tr>
        <td>38</td>
        <td>54</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/spiral-matrix/">螺旋矩阵</a></td>
        <td>38.5%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.181</td>
    </tr>
    <tr>
        <td>39</td>
        <td>300</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-increasing-subsequence/">最长上升子序列</a></td>
        <td>43.9%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.178</td>
    </tr>
    <tr>
        <td>40</td>
        <td>62</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/unique-paths/">不同路径</a></td>
        <td>58.7%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.11</td>
    </tr>
    <tr>
        <td>41</td>
        <td>69</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sqrtx/">x 的平方根</a></td>
        <td>37.5%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.109</td>
    </tr>
    <tr>
        <td>42</td>
        <td>557</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-words-in-a-string-iii/">反转字符串中的单词 III</a>
        </td>
        <td>69.2%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.254</td>
    </tr>
    <tr>
        <td>43</td>
        <td>227</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/basic-calculator-ii/">基本计算器 II</a></td>
        <td>34.7%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.537</td>
    </tr>
    <tr>
        <td>44</td>
        <td>554</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/brick-wall/">砖墙</a></td>
        <td>35.1%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.721</td>
    </tr>
    <tr>
        <td>45</td>
        <td>406</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/queue-reconstruction-by-height/">根据身高重建队列</a></td>
        <td>62.0%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.362</td>
    </tr>
    <tr>
        <td>46</td>
        <td>15</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/3sum/">三数之和</a></td>
        <td>25.4%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.062</td>
    </tr>
    <tr>
        <td>47</td>
        <td>160</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/intersection-of-two-linked-lists/">相交链表</a></td>
        <td>52.1%</td>
        <td>简单</td>
        <td>2</td>
        <td>0.115</td>
    </tr>
    <tr>
        <td>48</td>
        <td>1109</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/corporate-flight-bookings/">航班预订统计</a></td>
        <td>38.3%</td>
        <td>中等</td>
        <td>2</td>
        <td>0.852</td>
    </tr>
    <tr>
        <td>49</td>
        <td>175</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/combine-two-tables/">组合两个表</a></td>
        <td>71.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.107</td>
    </tr>
    <tr>
        <td>50</td>
        <td>224</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/basic-calculator/">基本计算器</a></td>
        <td>36.8%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.531</td>
    </tr>
    <tr>
        <td>51</td>
        <td>695</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/max-area-of-island/">岛屿的最大面积</a></td>
        <td>59.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.325</td>
    </tr>
    <tr>
        <td>52</td>
        <td>4</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/median-of-two-sorted-arrays/">寻找两个有序数组的中位数</a>
        </td>
        <td>36.7%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.062</td>
    </tr>
    <tr>
        <td>53</td>
        <td>148</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sort-list/">排序链表</a></td>
        <td>63.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.163</td>
    </tr>
    <tr>
        <td>54</td>
        <td>403</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/frog-jump/">青蛙过河</a></td>
        <td>32.3%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.834</td>
    </tr>
    <tr>
        <td>55</td>
        <td>22</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/generate-parentheses/">括号生成</a></td>
        <td>73.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.085</td>
    </tr>
    <tr>
        <td>56</td>
        <td>56</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/merge-intervals/">合并区间</a></td>
        <td>40.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.118</td>
    </tr>
    <tr>
        <td>57</td>
        <td>289</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/game-of-life/">生命游戏</a></td>
        <td>68.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.429</td>
    </tr>
    <tr>
        <td>58</td>
        <td>98</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/validate-binary-search-tree/">验证二叉搜索树</a></td>
        <td>28.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.097</td>
    </tr>
    <tr>
        <td>59</td>
        <td>17</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/letter-combinations-of-a-phone-number/">电话号码的字母组合</a></td>
        <td>52.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.08</td>
    </tr>
    <tr>
        <td>60</td>
        <td>316</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/remove-duplicate-letters/">去除重复字母</a></td>
        <td>37.0%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.598</td>
    </tr>
    <tr>
        <td>61</td>
        <td>202</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/happy-number/">快乐数</a></td>
        <td>57.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.159</td>
    </tr>
    <tr>
        <td>62</td>
        <td>51</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/n-queens/">N皇后</a></td>
        <td>67.9%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.176</td>
    </tr>
    <tr>
        <td>63</td>
        <td>13</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/roman-to-integer/">罗马数字转整数</a></td>
        <td>60.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.044</td>
    </tr>
    <tr>
        <td>64</td>
        <td>28</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/implement-strstr/">实现 strStr()</a></td>
        <td>39.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.051</td>
    </tr>
    <tr>
        <td>65</td>
        <td>66</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/plus-one/">加一</a></td>
        <td>42.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.051</td>
    </tr>
    <tr>
        <td>66</td>
        <td>84</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/largest-rectangle-in-histogram/">柱状图中最大的矩形</a>
        </td>
        <td>38.7%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.147</td>
    </tr>
    <tr>
        <td>67</td>
        <td>104</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-depth-of-binary-tree/">二叉树的最大深度</a></td>
        <td>72.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.046</td>
    </tr>
    <tr>
        <td>68</td>
        <td>187</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/repeated-dna-sequences/">重复的DNA序列</a></td>
        <td>43.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.361</td>
    </tr>
    <tr>
        <td>69</td>
        <td>415</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/add-strings/">字符串相加</a></td>
        <td>49.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.2</td>
    </tr>
    <tr>
        <td>70</td>
        <td>442</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-all-duplicates-in-an-array/">数组中重复的数据</a>
        </td>
        <td>63.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.361</td>
    </tr>
    <tr>
        <td>71</td>
        <td>547</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/friend-circles/">朋友圈</a></td>
        <td>54.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.216</td>
    </tr>
    <tr>
        <td>72</td>
        <td>135</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/candy/">分发糖果</a></td>
        <td>41.2%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.297</td>
    </tr>
    <tr>
        <td>73</td>
        <td>130</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/surrounded-regions/">被围绕的区域</a></td>
        <td>39.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.192</td>
    </tr>
    <tr>
        <td>74</td>
        <td>121</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock/">买卖股票的最佳时机</a>
        </td>
        <td>52.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.045</td>
    </tr>
    <tr>
        <td>75</td>
        <td>815</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/bus-routes/">公交路线</a></td>
        <td>30.1%</td>
        <td>困难</td>
        <td>1</td>
        <td>1.121</td>
    </tr>
    <tr>
        <td>76</td>
        <td>204</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/count-primes/">计数质数</a></td>
        <td>32.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.135</td>
    </tr>
    <tr>
        <td>77</td>
        <td>171</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/excel-sheet-column-number/">Excel表列序号</a></td>
        <td>66.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.165</td>
    </tr>
    <tr>
        <td>78</td>
        <td>621</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/task-scheduler/">任务调度器</a></td>
        <td>47.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.267</td>
    </tr>
    <tr>
        <td>79</td>
        <td>120</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/triangle/">三角形最小路径和</a></td>
        <td>63.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.125</td>
    </tr>
    <tr>
        <td>80</td>
        <td>283</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/move-zeroes/">移动零</a></td>
        <td>59.2%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.065</td>
    </tr>
    <tr>
        <td>81</td>
        <td>19</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/remove-nth-node-from-end-of-list/">删除链表的倒数第N个节点</a></td>
        <td>37.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.046</td>
    </tr>
    <tr>
        <td>82</td>
        <td>1162</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/as-far-from-land-as-possible/">地图分析</a></td>
        <td>37.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.71</td>
    </tr>
    <tr>
        <td>83</td>
        <td>343</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/integer-break/">整数拆分</a></td>
        <td>54.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.299</td>
    </tr>
    <tr>
        <td>84</td>
        <td>6</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/zigzag-conversion/">Z 字形变换</a></td>
        <td>46.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.062</td>
    </tr>
    <tr>
        <td>85</td>
        <td>44</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/wildcard-matching/">通配符匹配</a></td>
        <td>26.4%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.205</td>
    </tr>
    <tr>
        <td>86</td>
        <td>1143</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-common-subsequence/">最长公共子序列</a></td>
        <td>58.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.276</td>
    </tr>
    <tr>
        <td>87</td>
        <td>515</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/find-largest-value-in-each-tree-row/">在每个树行中找最大值</a></td>
        <td>58.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.445</td>
    </tr>
    <tr>
        <td>88</td>
        <td>91</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/decode-ways/">解码方法</a></td>
        <td>23.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.118</td>
    </tr>
    <tr>
        <td>89</td>
        <td>151</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-words-in-a-string/">翻转字符串里的单词</a></td>
        <td>35.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.159</td>
    </tr>
    <tr>
        <td>90</td>
        <td>387</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/first-unique-character-in-a-string/">字符串中的第一个唯一字符</a></td>
        <td>43.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.119</td>
    </tr>
    <tr>
        <td>91</td>
        <td>1160</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/find-words-that-can-be-formed-by-characters/">拼写单词</a></td>
        <td>64.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.42</td>
    </tr>
    <tr>
        <td>92</td>
        <td>141</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/linked-list-cycle/">环形链表</a></td>
        <td>46.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.035</td>
    </tr>
    <tr>
        <td>93</td>
        <td>203</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/remove-linked-list-elements/">移除链表元素</a></td>
        <td>43.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.067</td>
    </tr>
    <tr>
        <td>94</td>
        <td>58</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/length-of-last-word/">最后一个单词的长度</a></td>
        <td>32.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.052</td>
    </tr>
    <tr>
        <td>95</td>
        <td>88</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/merge-sorted-array/">合并两个有序数组</a></td>
        <td>46.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.035</td>
    </tr>
    <tr>
        <td>96</td>
        <td>96</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/unique-binary-search-trees/">不同的二叉搜索树</a></td>
        <td>64.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.086</td>
    </tr>
    <tr>
        <td>97</td>
        <td>122</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-ii/">买卖股票的最佳时机
            II</a></td>
        <td>57.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.036</td>
    </tr>
    <tr>
        <td>98</td>
        <td>146</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/lru-cache/">LRU缓存机制</a></td>
        <td>45.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.094</td>
    </tr>
    <tr>
        <td>99</td>
        <td>167</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/two-sum-ii-input-array-is-sorted/">两数之和 II -
            输入有序数组</a></td>
        <td>52.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.049</td>
    </tr>
    <tr>
        <td>100</td>
        <td>258</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/add-digits/">各位相加</a></td>
        <td>65.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.134</td>
    </tr>
    <tr>
        <td>101</td>
        <td>593</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-square/">有效的正方形</a></td>
        <td>41.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.706</td>
    </tr>
    <tr>
        <td>102</td>
        <td>423</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reconstruct-original-digits-from-english/">从英文中重建数字</a>
        </td>
        <td>51.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.698</td>
    </tr>
    <tr>
        <td>103</td>
        <td>38</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/count-and-say/">外观数列</a></td>
        <td>54.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.054</td>
    </tr>
    <tr>
        <td>104</td>
        <td>94</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-inorder-traversal/">二叉树的中序遍历</a></td>
        <td>70.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.038</td>
    </tr>
    <tr>
        <td>105</td>
        <td>184</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/department-highest-salary/">部门工资最高的员工</a></td>
        <td>43.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.179</td>
    </tr>
    <tr>
        <td>106</td>
        <td>192</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/word-frequency/">统计词频</a></td>
        <td>33.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.441</td>
    </tr>
    <tr>
        <td>107</td>
        <td>647</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/palindromic-substrings/">回文子串</a></td>
        <td>60.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.161</td>
    </tr>
    <tr>
        <td>108</td>
        <td>64</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-path-sum/">最小路径和</a></td>
        <td>64.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.052</td>
    </tr>
    <tr>
        <td>109</td>
        <td>301</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/remove-invalid-parentheses/">删除无效的括号</a></td>
        <td>45.1%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.397</td>
    </tr>
    <tr>
        <td>110</td>
        <td>1106</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/parsing-a-boolean-expression/">解析布尔表达式</a></td>
        <td>53.8%</td>
        <td>困难</td>
        <td>1</td>
        <td>1.126</td>
    </tr>
    <tr>
        <td>111</td>
        <td>491</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/increasing-subsequences/">递增子序列</a></td>
        <td>45.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.516</td>
    </tr>
    <tr>
        <td>112</td>
        <td>741</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/cherry-pickup/">摘樱桃</a></td>
        <td>29.9%</td>
        <td>困难</td>
        <td>1</td>
        <td>1.133</td>
    </tr>
    <tr>
        <td>113</td>
        <td>144</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-preorder-traversal/">二叉树的前序遍历</a></td>
        <td>64.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.058</td>
    </tr>
    <tr>
        <td>114</td>
        <td>583</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/delete-operation-for-two-strings/">两个字符串的删除操作</a>
        </td>
        <td>47.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.458</td>
    </tr>
    <tr>
        <td>115</td>
        <td>385</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/mini-parser/">迷你语法分析器</a></td>
        <td>40.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.725</td>
    </tr>
    <tr>
        <td>116</td>
        <td>107</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-level-order-traversal-ii/">二叉树的层次遍历
            II</a></td>
        <td>64.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.078</td>
    </tr>
    <tr>
        <td>117</td>
        <td>137</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/single-number-ii/">只出现一次的数字 II</a></td>
        <td>65.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.158</td>
    </tr>
    <tr>
        <td>118</td>
        <td>870</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/advantage-shuffle/">优势洗牌</a></td>
        <td>35.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.353</td>
    </tr>
    <tr>
        <td>119</td>
        <td>539</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-time-difference/">最小时间差</a></td>
        <td>53.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.539</td>
    </tr>
    <tr>
        <td>120</td>
        <td>997</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-the-town-judge/">找到小镇的法官</a></td>
        <td>49.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.309</td>
    </tr>
    <tr>
        <td>121</td>
        <td>355</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/design-twitter/">设计推特</a></td>
        <td>36.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.649</td>
    </tr>
    <tr>
        <td>122</td>
        <td>735</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/asteroid-collision/">行星碰撞</a></td>
        <td>37.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.488</td>
    </tr>
    <tr>
        <td>123</td>
        <td>237</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/delete-node-in-a-linked-list/">删除链表中的节点</a></td>
        <td>79.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.054</td>
    </tr>
    <tr>
        <td>124</td>
        <td>402</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/remove-k-digits/">移掉K位数字</a></td>
        <td>27.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.24</td>
    </tr>
    <tr>
        <td>125</td>
        <td>78</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/subsets/">子集</a></td>
        <td>76.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.057</td>
    </tr>
    <tr>
        <td>126</td>
        <td>233</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/number-of-digit-one/">数字 1 的个数</a></td>
        <td>32.3%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.446</td>
    </tr>
    <tr>
        <td>127</td>
        <td>409</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-palindrome/">最长回文串</a></td>
        <td>51.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.189</td>
    </tr>
    <tr>
        <td>128</td>
        <td>435</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/non-overlapping-intervals/">无重叠区间</a></td>
        <td>44.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.266</td>
    </tr>
    <tr>
        <td>129</td>
        <td>24</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/swap-nodes-in-pairs/">两两交换链表中的节点</a></td>
        <td>64.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.044</td>
    </tr>
    <tr>
        <td>130</td>
        <td>138</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/copy-list-with-random-pointer/">复制带随机指针的链表</a>
        </td>
        <td>43.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.143</td>
    </tr>
    <tr>
        <td>131</td>
        <td>354</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/russian-doll-envelopes/">俄罗斯套娃信封问题</a></td>
        <td>33.3%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.433</td>
    </tr>
    <tr>
        <td>132</td>
        <td>329</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/longest-increasing-path-in-a-matrix/">矩阵中的最长递增路径</a></td>
        <td>39.6%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.286</td>
    </tr>
    <tr>
        <td>133</td>
        <td>315</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/count-of-smaller-numbers-after-self/">计算右侧小于当前元素的个数</a>
        </td>
        <td>37.2%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.232</td>
    </tr>
    <tr>
        <td>134</td>
        <td>172</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/factorial-trailing-zeroes/">阶乘后的零</a></td>
        <td>39.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.105</td>
    </tr>
    <tr>
        <td>135</td>
        <td>39</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/combination-sum/">组合总和</a></td>
        <td>68.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.057</td>
    </tr>
    <tr>
        <td>136</td>
        <td>736</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/parse-lisp-expression/">Lisp 语法解析</a></td>
        <td>42.7%</td>
        <td>困难</td>
        <td>1</td>
        <td>2.097</td>
    </tr>
    <tr>
        <td>137</td>
        <td>29</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/divide-two-integers/">两数相除</a></td>
        <td>19.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.078</td>
    </tr>
    <tr>
        <td>138</td>
        <td>150</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/evaluate-reverse-polish-notation/">逆波兰表达式求值</a>
        </td>
        <td>49.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.11</td>
    </tr>
    <tr>
        <td>139</td>
        <td>437</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/path-sum-iii/">路径总和 III</a></td>
        <td>53.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.121</td>
    </tr>
    <tr>
        <td>140</td>
        <td>125</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-palindrome/">验证回文串</a></td>
        <td>42.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.054</td>
    </tr>
    <tr>
        <td>141</td>
        <td>142</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/linked-list-cycle-ii/">环形链表 II</a></td>
        <td>48.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.062</td>
    </tr>
    <tr>
        <td>142</td>
        <td>169</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/majority-element/">多数元素</a></td>
        <td>61.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.043</td>
    </tr>
    <tr>
        <td>143</td>
        <td>143</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reorder-list/">重排链表</a></td>
        <td>54.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.084</td>
    </tr>
    <tr>
        <td>144</td>
        <td>242</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-anagram/">有效的字母异位词</a></td>
        <td>58.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.031</td>
    </tr>
    <tr>
        <td>145</td>
        <td>782</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/transform-to-chessboard/">变为棋盘</a></td>
        <td>40.6%</td>
        <td>困难</td>
        <td>1</td>
        <td>1.17</td>
    </tr>
    <tr>
        <td>146</td>
        <td>36</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-sudoku/">有效的数独</a></td>
        <td>58.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.038</td>
    </tr>
    <tr>
        <td>147</td>
        <td>41</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/first-missing-positive/">缺失的第一个正数</a></td>
        <td>37.5%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.049</td>
    </tr>
    <tr>
        <td>148</td>
        <td>100</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/same-tree/">相同的树</a></td>
        <td>56.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.026</td>
    </tr>
    <tr>
        <td>149</td>
        <td>181</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/employees-earning-more-than-their-managers/">超过经理收入的员工</a>
        </td>
        <td>68.2%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.061</td>
    </tr>
    <tr>
        <td>150</td>
        <td>198</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/house-robber/">打家劫舍</a></td>
        <td>42.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.022</td>
    </tr>
    <tr>
        <td>151</td>
        <td>199</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-right-side-view/">二叉树的右视图</a></td>
        <td>63.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.071</td>
    </tr>
    <tr>
        <td>152</td>
        <td>235</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/lowest-common-ancestor-of-a-binary-search-tree/">二叉搜索树的最近公共祖先</a>
        </td>
        <td>62.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.048</td>
    </tr>
    <tr>
        <td>153</td>
        <td>279</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/perfect-squares/">完全平方数</a></td>
        <td>53.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.047</td>
    </tr>
    <tr>
        <td>154</td>
        <td>747</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/largest-number-at-least-twice-of-others/">至少是其他数字两倍的最大数</a>
        </td>
        <td>39.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.085</td>
    </tr>
    <tr>
        <td>155</td>
        <td>692</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/top-k-frequent-words/">前K个高频单词</a></td>
        <td>48.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.196</td>
    </tr>
    <tr>
        <td>156</td>
        <td>149</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/max-points-on-a-line/">直线上最多的点数</a></td>
        <td>20.4%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.169</td>
    </tr>
    <tr>
        <td>157</td>
        <td>201</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/bitwise-and-of-numbers-range/">数字范围按位与</a></td>
        <td>44.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.165</td>
    </tr>
    <tr>
        <td>158</td>
        <td>114</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/flatten-binary-tree-to-linked-list/">二叉树展开为链表</a>
        </td>
        <td>67.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.05</td>
    </tr>
    <tr>
        <td>159</td>
        <td>185</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/department-top-three-salaries/">部门工资前三高的所有员工</a>
        </td>
        <td>41.7%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.149</td>
    </tr>
    <tr>
        <td>160</td>
        <td>92</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-linked-list-ii/">反转链表 II</a></td>
        <td>48.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.047</td>
    </tr>
    <tr>
        <td>161</td>
        <td>304</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/range-sum-query-2d-immutable/">二维区域和检索 - 矩阵不可变</a>
        </td>
        <td>42.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.176</td>
    </tr>
    <tr>
        <td>162</td>
        <td>208</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/implement-trie-prefix-tree/">实现 Trie (前缀树)</a>
        </td>
        <td>64.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.06</td>
    </tr>
    <tr>
        <td>163</td>
        <td>30</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/substring-with-concatenation-of-all-words/">串联所有单词的子串</a>
        </td>
        <td>29.1%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.079</td>
    </tr>
    <tr>
        <td>164</td>
        <td>176</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/second-highest-salary/">第二高的薪水</a></td>
        <td>33.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.035</td>
    </tr>
    <tr>
        <td>165</td>
        <td>1027</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-arithmetic-sequence/">最长等差数列</a></td>
        <td>40.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.389</td>
    </tr>
    <tr>
        <td>166</td>
        <td>718</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-length-of-repeated-subarray/">最长重复子数组</a>
        </td>
        <td>48.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.187</td>
    </tr>
    <tr>
        <td>167</td>
        <td>1013</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/partition-array-into-three-parts-with-equal-sum/">将数组分成和相等的三个部分</a>
        </td>
        <td>54.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.211</td>
    </tr>
    <tr>
        <td>168</td>
        <td>445</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/add-two-numbers-ii/">两数相加 II</a></td>
        <td>53.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.09</td>
    </tr>
    <tr>
        <td>169</td>
        <td>18</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/4sum/">四数之和</a></td>
        <td>37.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.033</td>
    </tr>
    <tr>
        <td>170</td>
        <td>350</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/intersection-of-two-arrays-ii/">两个数组的交集 II</a>
        </td>
        <td>46.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.037</td>
    </tr>
    <tr>
        <td>171</td>
        <td>67</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/add-binary/">二进制求和</a></td>
        <td>52.2%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.029</td>
    </tr>
    <tr>
        <td>172</td>
        <td>1165</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/single-row-keyboard/">单行键盘</a></td>
        <td>81.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.421</td>
    </tr>
    <tr>
        <td>173</td>
        <td>1171</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/remove-zero-sum-consecutive-nodes-from-linked-list/">从链表中删去总和值为零的连续节点</a>
        </td>
        <td>36.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.268</td>
    </tr>
    <tr>
        <td>174</td>
        <td>946</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/validate-stack-sequences/">验证栈序列</a></td>
        <td>53.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.228</td>
    </tr>
    <tr>
        <td>175</td>
        <td>77</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/combinations/">组合</a></td>
        <td>72.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.056</td>
    </tr>
    <tr>
        <td>176</td>
        <td>881</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/boats-to-save-people/">救生艇</a></td>
        <td>39.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.339</td>
    </tr>
    <tr>
        <td>177</td>
        <td>140</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/word-break-ii/">单词拆分 II</a></td>
        <td>37.7%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.127</td>
    </tr>
    <tr>
        <td>178</td>
        <td>163</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/missing-ranges/">缺失的区间</a></td>
        <td>24.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.375</td>
    </tr>
    <tr>
        <td>179</td>
        <td>75</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sort-colors/">颜色分类</a></td>
        <td>54.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.031</td>
    </tr>
    <tr>
        <td>180</td>
        <td>455</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/assign-cookies/">分发饼干</a></td>
        <td>52.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.063</td>
    </tr>
    <tr>
        <td>181</td>
        <td>210</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/course-schedule-ii/">课程表 II</a></td>
        <td>46.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.103</td>
    </tr>
    <tr>
        <td>182</td>
        <td>214</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/shortest-palindrome/">最短回文串</a></td>
        <td>31.2%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.208</td>
    </tr>
    <tr>
        <td>183</td>
        <td>325</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-size-subarray-sum-equals-k/">和等于 k
            的最长子数组长度</a></td>
        <td>45.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.495</td>
    </tr>
    <tr>
        <td>184</td>
        <td>357</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/count-numbers-with-unique-digits/">计算各个位数不同的数字个数</a></td>
        <td>49.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.185</td>
    </tr>
    <tr>
        <td>185</td>
        <td>799</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/champagne-tower/">香槟塔</a></td>
        <td>34.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.606</td>
    </tr>
    <tr>
        <td>186</td>
        <td>673</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/number-of-longest-increasing-subsequence/">最长递增子序列的个数</a>
        </td>
        <td>33.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.229</td>
    </tr>
    <tr>
        <td>187</td>
        <td>784</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/letter-case-permutation/">字母大小写全排列</a></td>
        <td>62.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.134</td>
    </tr>
    <tr>
        <td>188</td>
        <td>976</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/largest-perimeter-triangle/">三角形的最大周长</a></td>
        <td>54.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.149</td>
    </tr>
    <tr>
        <td>189</td>
        <td>31</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/next-permutation/">下一个排列</a></td>
        <td>32.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.033</td>
    </tr>
    <tr>
        <td>190</td>
        <td>123</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-iii/">买卖股票的最佳时机
            III</a></td>
        <td>40.9%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.065</td>
    </tr>
    <tr>
        <td>191</td>
        <td>850</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/rectangle-area-ii/">矩形面积 II</a></td>
        <td>39.3%</td>
        <td>困难</td>
        <td>1</td>
        <td>1.073</td>
    </tr>
    <tr>
        <td>192</td>
        <td>605</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/can-place-flowers/">种花问题</a></td>
        <td>31.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.093</td>
    </tr>
    <tr>
        <td>193</td>
        <td>516</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-palindromic-subsequence/">最长回文子序列</a></td>
        <td>49.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.127</td>
    </tr>
    <tr>
        <td>194</td>
        <td>127</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/word-ladder/">单词接龙</a></td>
        <td>39.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.072</td>
    </tr>
    <tr>
        <td>195</td>
        <td>153</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-minimum-in-rotated-sorted-array/">寻找旋转排序数组中的最小值</a>
        </td>
        <td>50.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.053</td>
    </tr>
    <tr>
        <td>196</td>
        <td>778</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/swim-in-rising-water/">水位上升的泳池中游泳</a></td>
        <td>45.9%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.618</td>
    </tr>
    <tr>
        <td>197</td>
        <td>133</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/clone-graph/">克隆图</a></td>
        <td>48.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.113</td>
    </tr>
    <tr>
        <td>198</td>
        <td>209</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-size-subarray-sum/">长度最小的子数组</a></td>
        <td>41.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.061</td>
    </tr>
    <tr>
        <td>199</td>
        <td>226</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/invert-binary-tree/">翻转二叉树</a></td>
        <td>73.7%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.028</td>
    </tr>
    <tr>
        <td>200</td>
        <td>10</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/regular-expression-matching/">正则表达式匹配</a></td>
        <td>26.0%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.033</td>
    </tr>
    <tr>
        <td>201</td>
        <td>862</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/shortest-subarray-with-sum-at-least-k/">和至少为 K
            的最短子数组</a></td>
        <td>13.1%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.217</td>
    </tr>
    <tr>
        <td>202</td>
        <td>562</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-line-of-consecutive-one-in-matrix/">矩阵中最长的连续1线段</a>
        </td>
        <td>36.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.703</td>
    </tr>
    <tr>
        <td>203</td>
        <td>450</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/delete-node-in-a-bst/">删除二叉搜索树中的节点</a></td>
        <td>37.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.158</td>
    </tr>
    <tr>
        <td>204</td>
        <td>560</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/subarray-sum-equals-k/">和为K的子数组</a></td>
        <td>43.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.091</td>
    </tr>
    <tr>
        <td>205</td>
        <td>543</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/diameter-of-binary-tree/">二叉树的直径</a></td>
        <td>47.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.057</td>
    </tr>
    <tr>
        <td>206</td>
        <td>841</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/keys-and-rooms/">钥匙和房间</a></td>
        <td>59.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.179</td>
    </tr>
    <tr>
        <td>207</td>
        <td>1047</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/remove-all-adjacent-duplicates-in-string/">删除字符串中的所有相邻重复项</a>
        </td>
        <td>66.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.109</td>
    </tr>
    <tr>
        <td>208</td>
        <td>234</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/palindrome-linked-list/">回文链表</a></td>
        <td>40.2%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.029</td>
    </tr>
    <tr>
        <td>209</td>
        <td>1116</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/print-zero-even-odd/">打印零与奇偶数</a></td>
        <td>46.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.248</td>
    </tr>
    <tr>
        <td>210</td>
        <td>1044</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-duplicate-substring/">最长重复子串</a></td>
        <td>15.8%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.452</td>
    </tr>
    <tr>
        <td>211</td>
        <td>1151</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-swaps-to-group-all-1s-together/">最少交换次数来组合所有的
            1</a></td>
        <td>41.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.887</td>
    </tr>
    <tr>
        <td>212</td>
        <td>164</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-gap/">最大间距</a></td>
        <td>54.3%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.193</td>
    </tr>
    <tr>
        <td>213</td>
        <td>165</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/compare-version-numbers/">比较版本号</a></td>
        <td>38.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.108</td>
    </tr>
    <tr>
        <td>214</td>
        <td>33</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/search-in-rotated-sorted-array/">搜索旋转排序数组</a></td>
        <td>36.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.024</td>
    </tr>
    <tr>
        <td>215</td>
        <td>617</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/merge-two-binary-trees/">合并二叉树</a></td>
        <td>74.8%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.046</td>
    </tr>
    <tr>
        <td>216</td>
        <td>791</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/custom-sort-string/">自定义字符串排序</a></td>
        <td>65.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.328</td>
    </tr>
    <tr>
        <td>217</td>
        <td>843</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/guess-the-word/">猜猜这个单词</a></td>
        <td>33.0%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.991</td>
    </tr>
    <tr>
        <td>218</td>
        <td>1019</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/next-greater-node-in-linked-list/">链表中的下一个更大节点</a>
        </td>
        <td>50.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.226</td>
    </tr>
    <tr>
        <td>219</td>
        <td>253</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/meeting-rooms-ii/">会议室 II</a></td>
        <td>40.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.202</td>
    </tr>
    <tr>
        <td>220</td>
        <td>76</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-window-substring/">最小覆盖子串</a></td>
        <td>35.3%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.061</td>
    </tr>
    <tr>
        <td>221</td>
        <td>646</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-length-of-pair-chain/">最长数对链</a></td>
        <td>52.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.273</td>
    </tr>
    <tr>
        <td>222</td>
        <td>680</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-palindrome-ii/">验证回文字符串 Ⅱ</a></td>
        <td>35.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.083</td>
    </tr>
    <tr>
        <td>223</td>
        <td>462</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-moves-to-equal-array-elements-ii/">最少移动次数使数组元素相等
            II</a></td>
        <td>55.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.31</td>
    </tr>
    <tr>
        <td>224</td>
        <td>992</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/subarrays-with-k-different-integers/">K
            个不同整数的子数组</a></td>
        <td>24.7%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.46</td>
    </tr>
    <tr>
        <td>225</td>
        <td>452</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-number-of-arrows-to-burst-balloons/">用最少数量的箭引爆气球</a>
        </td>
        <td>48.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.151</td>
    </tr>
    <tr>
        <td>226</td>
        <td>957</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/prison-cells-after-n-days/">N 天后的牢房</a></td>
        <td>32.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.295</td>
    </tr>
    <tr>
        <td>227</td>
        <td>499</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/the-maze-iii/">迷宫 III</a></td>
        <td>30.9%</td>
        <td>困难</td>
        <td>1</td>
        <td>1.048</td>
    </tr>
    <tr>
        <td>228</td>
        <td>582</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/kill-process/">杀死进程</a></td>
        <td>33.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.469</td>
    </tr>
    <tr>
        <td>229</td>
        <td>1239</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/maximum-length-of-a-concatenated-string-with-unique-characters/">串联字符串的最大长度</a>
        </td>
        <td>37.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.251</td>
    </tr>
    <tr>
        <td>230</td>
        <td>34</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/find-first-and-last-position-of-element-in-sorted-array/">在排序数组中查找元素的第一个和最后一个位置</a>
        </td>
        <td>38.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.025</td>
    </tr>
    <tr>
        <td>231</td>
        <td>254</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/factor-combinations/">因子的组合</a></td>
        <td>54.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.693</td>
    </tr>
    <tr>
        <td>232</td>
        <td>678</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-parenthesis-string/">有效的括号字符串</a></td>
        <td>29.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.28</td>
    </tr>
    <tr>
        <td>233</td>
        <td>631</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/design-excel-sum-formula/">设计 Excel 求和公式</a></td>
        <td>21.7%</td>
        <td>困难</td>
        <td>1</td>
        <td>1.14</td>
    </tr>
    <tr>
        <td>234</td>
        <td>1245</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/tree-diameter/">树的直径</a></td>
        <td>40.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.932</td>
    </tr>
    <tr>
        <td>235</td>
        <td>1031</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/maximum-sum-of-two-non-overlapping-subarrays/">两个非重叠子数组的最大和</a>
        </td>
        <td>49.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.647</td>
    </tr>
    <tr>
        <td>236</td>
        <td>313</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/super-ugly-number/">超级丑数</a></td>
        <td>60.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.234</td>
    </tr>
    <tr>
        <td>237</td>
        <td>59</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/spiral-matrix-ii/">螺旋矩阵 II</a></td>
        <td>76.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.059</td>
    </tr>
    <tr>
        <td>238</td>
        <td>79</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/word-search/">单词搜索</a></td>
        <td>40.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.042</td>
    </tr>
    <tr>
        <td>239</td>
        <td>102</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/binary-tree-level-order-traversal/">二叉树的层次遍历</a>
        </td>
        <td>60.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.023</td>
    </tr>
    <tr>
        <td>240</td>
        <td>105</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal/">从前序与中序遍历序列构造二叉树</a>
        </td>
        <td>63.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.038</td>
    </tr>
    <tr>
        <td>241</td>
        <td>109</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/convert-sorted-list-to-binary-search-tree/">有序链表转换二叉搜索树</a>
        </td>
        <td>70.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.078</td>
    </tr>
    <tr>
        <td>242</td>
        <td>193</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-phone-numbers/">有效电话号码</a></td>
        <td>27.7%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.193</td>
    </tr>
    <tr>
        <td>243</td>
        <td>223</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/rectangle-area/">矩形面积</a></td>
        <td>42.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.205</td>
    </tr>
    <tr>
        <td>244</td>
        <td>225</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/implement-stack-using-queues/">用队列实现栈</a></td>
        <td>62.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.051</td>
    </tr>
    <tr>
        <td>245</td>
        <td>273</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/integer-to-english-words/">整数转换英文表示</a></td>
        <td>26.1%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.309</td>
    </tr>
    <tr>
        <td>246</td>
        <td>297</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/serialize-and-deserialize-binary-tree/">二叉树的序列化与反序列化</a>
        </td>
        <td>44.2%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.093</td>
    </tr>
    <tr>
        <td>247</td>
        <td>303</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/range-sum-query-immutable/">区域和检索 - 数组不可变</a></td>
        <td>59.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.065</td>
    </tr>
    <tr>
        <td>248</td>
        <td>338</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/counting-bits/">比特位计数</a></td>
        <td>74.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.063</td>
    </tr>
    <tr>
        <td>249</td>
        <td>367</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/valid-perfect-square/">有效的完全平方数</a></td>
        <td>43.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.073</td>
    </tr>
    <tr>
        <td>250</td>
        <td>414</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/third-maximum-number/">第三大的数</a></td>
        <td>34.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.067</td>
    </tr>
    <tr>
        <td>251</td>
        <td>451</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/sort-characters-by-frequency/">根据字符出现频率排序</a></td>
        <td>61.7%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.108</td>
    </tr>
    <tr>
        <td>252</td>
        <td>468</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/validate-ip-address/">验证IP地址</a></td>
        <td>21.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.24</td>
    </tr>
    <tr>
        <td>253</td>
        <td>518</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/coin-change-2/">零钱兑换 II</a></td>
        <td>47.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.194</td>
    </tr>
    <tr>
        <td>254</td>
        <td>595</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/big-countries/">大的国家</a></td>
        <td>76.6%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.077</td>
    </tr>
    <tr>
        <td>255</td>
        <td>638</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/shopping-offers/">大礼包</a></td>
        <td>57.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.432</td>
    </tr>
    <tr>
        <td>256</td>
        <td>639</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/decode-ways-ii/">解码方法 2</a></td>
        <td>26.2%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.688</td>
    </tr>
    <tr>
        <td>257</td>
        <td>771</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/jewels-and-stones/">宝石与石头</a></td>
        <td>81.7%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.058</td>
    </tr>
    <tr>
        <td>258</td>
        <td>836</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/rectangle-overlap/">矩形重叠</a></td>
        <td>45.2%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.249</td>
    </tr>
    <tr>
        <td>259</td>
        <td>1114</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/print-in-order/">按序打印</a></td>
        <td>58.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.083</td>
    </tr>
    <tr>
        <td>260</td>
        <td>50</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/powx-n/">Pow(x, n)</a></td>
        <td>33.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.032</td>
    </tr>
    <tr>
        <td>261</td>
        <td>83</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/remove-duplicates-from-sorted-list/">删除排序链表中的重复元素</a></td>
        <td>49.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.025</td>
    </tr>
    <tr>
        <td>262</td>
        <td>117</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/populating-next-right-pointers-in-each-node-ii/">填充每个节点的下一个右侧节点指针
            II</a></td>
        <td>44.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.101</td>
    </tr>
    <tr>
        <td>263</td>
        <td>136</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/single-number/">只出现一次的数字</a></td>
        <td>65.1%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.017</td>
    </tr>
    <tr>
        <td>264</td>
        <td>166</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/fraction-to-recurring-decimal/">分数到小数</a></td>
        <td>25.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.155</td>
    </tr>
    <tr>
        <td>265</td>
        <td>186</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/reverse-words-in-a-string-ii/">翻转字符串里的单词 II</a>
        </td>
        <td>71.5%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.38</td>
    </tr>
    <tr>
        <td>266</td>
        <td>188</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock-iv/">买卖股票的最佳时机
            IV</a></td>
        <td>28.8%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.103</td>
    </tr>
    <tr>
        <td>267</td>
        <td>219</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/contains-duplicate-ii/">存在重复元素 II</a></td>
        <td>37.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.048</td>
    </tr>
    <tr>
        <td>268</td>
        <td>231</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/power-of-two/">2的幂</a></td>
        <td>47.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.047</td>
    </tr>
    <tr>
        <td>269</td>
        <td>278</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/first-bad-version/">第一个错误的版本</a></td>
        <td>36.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.055</td>
    </tr>
    <tr>
        <td>270</td>
        <td>287</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-the-duplicate-number/">寻找重复数</a></td>
        <td>62.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.046</td>
    </tr>
    <tr>
        <td>271</td>
        <td>319</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/bulb-switcher/">灯泡开关</a></td>
        <td>44.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.184</td>
    </tr>
    <tr>
        <td>272</td>
        <td>347</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/top-k-frequent-elements/">前 K 个高频元素</a></td>
        <td>60.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.046</td>
    </tr>
    <tr>
        <td>273</td>
        <td>362</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/design-hit-counter/">敲击计数器</a></td>
        <td>69.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.66</td>
    </tr>
    <tr>
        <td>274</td>
        <td>378</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/kth-smallest-element-in-a-sorted-matrix/">有序矩阵中第K小的元素</a>
        </td>
        <td>57.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.112</td>
    </tr>
    <tr>
        <td>275</td>
        <td>383</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/ransom-note/">赎金信</a></td>
        <td>51.5%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.082</td>
    </tr>
    <tr>
        <td>276</td>
        <td>459</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/repeated-substring-pattern/">重复的子字符串</a></td>
        <td>45.2%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.123</td>
    </tr>
    <tr>
        <td>277</td>
        <td>476</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/number-complement/">数字的补数</a></td>
        <td>67.9%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.131</td>
    </tr>
    <tr>
        <td>278</td>
        <td>535</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/encode-and-decode-tinyurl/">TinyURL 的加密与解密</a>
        </td>
        <td>81.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.253</td>
    </tr>
    <tr>
        <td>279</td>
        <td>538</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/convert-bst-to-greater-tree/">把二叉搜索树转换为累加树</a>
        </td>
        <td>58.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.072</td>
    </tr>
    <tr>
        <td>280</td>
        <td>600</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/non-negative-integers-without-consecutive-ones/">不含连续1的非负整数</a>
        </td>
        <td>29.5%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.683</td>
    </tr>
    <tr>
        <td>281</td>
        <td>652</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/find-duplicate-subtrees/">寻找重复的子树</a></td>
        <td>51.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.276</td>
    </tr>
    <tr>
        <td>282</td>
        <td>470</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/implement-rand10-using-rand7/">用 Rand7() 实现
            Rand10()</a></td>
        <td>44.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.31</td>
    </tr>
    <tr>
        <td>283</td>
        <td>1108</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/defanging-an-ip-address/">IP 地址无效化</a></td>
        <td>81.0%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.069</td>
    </tr>
    <tr>
        <td>284</td>
        <td>189</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/rotate-array/">旋转数组</a></td>
        <td>40.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.025</td>
    </tr>
    <tr>
        <td>285</td>
        <td>97</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/interleaving-string/">交错字符串</a></td>
        <td>38.5%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.14</td>
    </tr>
    <tr>
        <td>286</td>
        <td>207</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/course-schedule/">课程表</a></td>
        <td>49.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.067</td>
    </tr>
    <tr>
        <td>287</td>
        <td>697</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/degree-of-an-array/">数组的度</a></td>
        <td>51.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.127</td>
    </tr>
    <tr>
        <td>288</td>
        <td>434</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/number-of-segments-in-a-string/">字符串中的单词数</a></td>
        <td>33.7%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.112</td>
    </tr>
    <tr>
        <td>289</td>
        <td>328</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/odd-even-linked-list/">奇偶链表</a></td>
        <td>61.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.06</td>
    </tr>
    <tr>
        <td>290</td>
        <td>139</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/word-break/">单词拆分</a></td>
        <td>43.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.044</td>
    </tr>
    <tr>
        <td>291</td>
        <td>229</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/majority-element-ii/">求众数 II</a></td>
        <td>42.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.151</td>
    </tr>
    <tr>
        <td>292</td>
        <td>1124</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/longest-well-performing-interval/">表现良好的最长时间段</a>
        </td>
        <td>23.2%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.314</td>
    </tr>
    <tr>
        <td>293</td>
        <td>1299</td>
        <td><a target="_blank"
               href="https://leetcode-cn.com/problems/replace-elements-with-greatest-element-on-right-side/">将每个元素替换为右侧最大元素</a>
        </td>
        <td>73.4%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.092</td>
    </tr>
    <tr>
        <td>294</td>
        <td>1267</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/count-servers-that-communicate/">统计参与通信的服务器</a>
        </td>
        <td>58.1%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.314</td>
    </tr>
    <tr>
        <td>295</td>
        <td>419</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/battleships-in-a-board/">甲板上的战舰</a></td>
        <td>70.6%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.305</td>
    </tr>
    <tr>
        <td>296</td>
        <td>71</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/simplify-path/">简化路径</a></td>
        <td>38.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.054</td>
    </tr>
    <tr>
        <td>297</td>
        <td>1163</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/last-substring-in-lexicographical-order/">按字典序排在最后的子串</a>
        </td>
        <td>21.5%</td>
        <td>困难</td>
        <td>1</td>
        <td>0.46</td>
    </tr>
    <tr>
        <td>298</td>
        <td>215</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/kth-largest-element-in-an-array/">数组中的第K个最大元素</a>
        </td>
        <td>60.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.026</td>
    </tr>
    <tr>
        <td>299</td>
        <td>875</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/koko-eating-bananas/">爱吃香蕉的珂珂</a></td>
        <td>39.0%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.207</td>
    </tr>
    <tr>
        <td>300</td>
        <td>196</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/delete-duplicate-emails/">删除重复的电子邮箱</a></td>
        <td>59.3%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.088</td>
    </tr>
    <tr>
        <td>301</td>
        <td>1262</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/greatest-sum-divisible-by-three/">可被三整除的最大和</a>
        </td>
        <td>43.3%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.321</td>
    </tr>
    <tr>
        <td>302</td>
        <td>801</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/minimum-swaps-to-make-sequences-increasing/">使序列递增的最小交换次数</a>
        </td>
        <td>36.4%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.488</td>
    </tr>
    <tr>
        <td>303</td>
        <td>16</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/3sum-closest/">最接近的三数之和</a></td>
        <td>42.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.025</td>
    </tr>
    <tr>
        <td>304</td>
        <td>228</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/summary-ranges/">汇总区间</a></td>
        <td>50.8%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.172</td>
    </tr>
    <tr>
        <td>305</td>
        <td>987</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/vertical-order-traversal-of-a-binary-tree/">二叉树的垂序遍历</a>
        </td>
        <td>36.9%</td>
        <td>中等</td>
        <td>1</td>
        <td>0.45</td>
    </tr>
    <tr>
        <td>306</td>
        <td>758</td>
        <td><a target="_blank" href="https://leetcode-cn.com/problems/bold-words-in-string/">字符串中的加粗单词</a></td>
        <td>40.7%</td>
        <td>简单</td>
        <td>1</td>
        <td>0.693</td>
    </tr>
    </tbody>
</table>